Identify Coefficients: Identify the coefficients of the quadratic expression.The quadratic expression is 5x2+3x−2. Here, the coefficient of x2(a) is 5, the coefficient of x(b) is 3, and the constant term (c) is −2.
Find Multiplying Numbers: Find two numbers that multiply to ac (5×−2=−10) and add up to b (3).We need to find two numbers that multiply together to give −10 and add up to 3. The numbers that satisfy these conditions are 5 and −2 because 5×−2=−10 and 5+(−2)=3.
Rewrite Middle Term: Rewrite the middle term using the two numbers found in Step 2.We can express the middle term 3x as the sum of 5x and −2x. So, the expression becomes 5x2+5x−2x−2.
Factor by Grouping: Factor by grouping.We group the terms as follows: (5x2+5x)+(−2x−2). Now we factor out the common factors from each group. From the first group, we can factor out 5x, and from the second group, we can factor out −2.This gives us: 5x(x+1)−2(x+1).
Factor Common Binomial: Factor out the common binomial factor.We notice that x+1 is a common factor in both terms. We can factor this out to get the final factored form: 5x−2(x + 1\).